Stool



c. F.- MILLER.

STOOL.

APPLICATION FILED APR. 29; I921.

Patented Nov. 29, 1921.

aww/wboz fiarlesFMilcr STATES CHARLES E. MILLER, OF COLUMBUS, CHIC.

. STOOL.

resilient stools, and has for its primary ob ject to provide a stool ofthis character which is adapted for use upon street cars or other movingvehicles for enabling the operators thereof to remain comfortably seatedwhile controlling the vehicles, this object being carried out by theprovision .of an improved spring structure for such stools which servesto absorb the vibration and jar imparted to the vehicle and to therebyprevent the jolts and jars from interfering with the comfort of theoperator.

The present invention consists in-the provision of a stool wherein isembodied a rigid frame, a seat, a stem depending from the seat and animproved spring structure between the frame and stem for the purpose ofresiliently supporting the seat, the said spring structure includingradially eXtending springs which are adapted to be connected with theframe and with collars loosely mounted upon the stem, and said radiallyextending springs being supplemented by a plurality of verticallydisposed springs, which connect the lowermost of said collars with theupper part of said frame and serve to resiliently support the seat whenthe latter is occupied.

Another object of theinvention resides in improving the construction ofthe stool disclosed in the copending application of Albert Miller etall, Serial Number 339,363,-

filed November 20, 1919, which application the present applicant is anassignee of the title thereof.

In the accompanying drawing:

Figure 1 is a side elevation of the springs 2 comprising the presentinvention,

Fig. 2 is a vertical longitudinal sectional View taken through thestool, and

Fig. 3 is a horizontal sectional view taken along the line 3-3 of Fig.1.

Referring more particularly to the details of the invention, the numeral1 designates my improved stool in its entirety, as shown, the stoolconsists in this instance of a metallic frame 2, which may be formedfrom Specification of Letters Patent.

Patented Nov. 29, 1921.

Application ffiled April 29, 1921. Serial No. 465,438

substantially vertically disposed angle bars 3, which are united bymeans of rigid cross bars 4. This construction serves to render theframesubstantial in construction, capable of withstanding hard andsevere usage and at the same time permits the same to be relativelylight in weight so as to be readily handled. i

The stool further includes'a seat 5, of.

any suitable design or construction, in the form of the inventionillustrated the seat belng deslgned for the use of the o aerator of apassenger carrying vehicle, but it will be apparent that the seat mayalso be used in drafting rooms, in connection with book-- keepingofiices, cashiers desks andin very many other different occupations. Theseat 5 in this instanceis provided with a depend-v ing stem 6, which isrigidly secured as at ,T.

to the under surface of the stool, the said stem being adapted to extenddownwardly and vertically through the frame 2, and has its lower endthreaded for a suitable distance as at 8. Arranged to be threadedlycarried by the lower end 8 of the stem is a collar 9 that carriesradially projecting arms 10, which arms have their outer ends connectedwith the inner ends of radially disposed springs 11. These springs aredisposed to incline downwardly and outwardly, and have their outer endssecured in any suitable manner to the frame 2, the said springs 11serving to center the positions of the lower ends of the stem and alsoto absorb a part of the weight placed upon the seat 5.

However, to absorb the greater part of the weight which will be placedupon the stool, I employ substantially vertically disposed springs 12,which have their upper ends connected with the upper portion of theframe 2, and have their lower ends connected with the outer ends of thearms 10 immediately adj acent to the inner ends of the springs 11. Itwill be manifest that by reason of this construction when weight isdeposited upon. the seat 5, the stem will move downwardly a distanceresiliently limited bythe cooperative action of the springs 11 and 12.Also, carried by the upper end of the frame is a plurality of radiallyprojecting springs 13, which are situated to extend parallel with thesprings 11. These springs 13 have their inner ends connected with theouter portions of radially extending arms provided upon a around theupper portion of the stem 6. The spring structure described servesthrough the instrumentality of the collar 9 to efi'ect the resilientsupport of the seat structure,

and provides a very efiicient construction for this purpose. T he collar14 is main tained in its proper position with respect to the stem 6 byproviding a rebound absorbing spring 15, which surrounds the stein G andis positioned between the collars 9 and 14. It will be seen that thespring 15 by reason of its location and cooperation with the collars 9and 13 will serve to arrest sharp upward movement on the part of theseat when weight upon the latter is suddeiilyreleasecl orremoved, andalso to renderthe operation of the spring structure generally smooth,uniform and devoid of intermittent or jerky movements. Another featurefound in the present invention by'the use. of the horizontal springs 11and 13 is the lateral movement which may beimparted ina limited degreeto the seat. In the apphca'taon above referred to the seat is onlyresilientwith re-,

spect to the vertical, the stem being gripped in such manner as topreclude lateral movement on the part of the seat in any degree.However, it will be manifestthat whilethe springs 11 and 13 will servenormally to maintain the stem within the center of the frame, yet theydo not afford the slight lateral motion mentioned, a feature which is ofmarked advantage for the operators of common carriers.

W- Vhat is claimed is: 7

1. A stool of the character described comprising a supporting frame, aseat, a stem depending from said seat, said stem being provided with athreaded lower portion, a member threaded to the lower portion of saidstem and permitting of vertical adjustment onthe part of said seat,asecond member loosely carried by said stein above said firstnamedmember, a rebound spring positioned between said members and serving tospace the latter, and a'plurality of shock absorbing springs extendingbetween said members and said supporting frame.

2. A stool of the character described com prising a supporting frame,aseat, a stem depending from said seat and arranged vertically andcentrally of said frame, a member capable of threadedly receiving thelower end of said stem, a second member loosely carried by said stemabove said first named member, a rebound rounding said stem and exertingpressure upon said members to separate the latter, and horizontal andvertical extending sp rings carried by said frame and having the innerends thereof connected with said members.

' In testimony whereof I afiix my signature.

CHARLES r. MILLER.

absorbing spring sur-

